SalPicture
Namespace: PPJ.Runtime.Windows
Assembly: PPJ.Web.49 (4.9.0.0)
Represent a control that displays an image.
- C#
- VB.NET
public class SalPicture : PictureBox, ISalWindow, ISalPictureControl, ISalControl
Public Class SalPicture
Inherits PictureBox
Implements ISalWindow, ISalPictureControl, ISalControl
Constructors
SalPicture()
Constructs a SalPicture object.
Properties
Image
Image: Returns or sets the image to show in the picture control.
ImageName
String: Image name. Name of the image to load from the embedded resources. (Default: "")
ImageSource
String: Returns or sets the name of the image to load from the theme or a URL. (Default: null)
ImageStorage
ImageStorage: SalPicture storage.
Label
Control: Returns/Sets the label associated with this control.
NamedProperties
SalNamedProperties: Returns the collection of named properties.
Methods
BringWindowToTop()
Brings a window to the top of all overlapping windows.
Returns: SalBoolean.
CenterWindow()
Centers a window. If the window is a top-level window, it centers it on the desktop. If the window is a child window, it centers it on top of its parent.
Returns: SalBoolean.
Clear()
Clears the value from a data field, multiline field, or table window column.
Returns: SalBoolean.
ClearCursor(nType)
Clears a window's cursor.
| Parameter | Type | Description |
|---|---|---|
| nType | SalNumber |
Returns: SalBoolean.
ClearImage()
Deletes the contents of a picture.
Returns: SalBoolean.
DestroyWindow()
Destroys a form window, a top-level table window, or a modeless dialog box created with SalCreateWindow.
Returns: SalBoolean.
DisableWindow()
Disables keyboard and mouse input to a window. If the window contains text (for example, a push button), the text is grayed. If the window is a data field, it cannot receive the focus.
Returns: SalBoolean.
DisableWindowAndLabel()
Disables keyboard and mouse input to a window and grays out its associated label. A label is the label control that immediately precedes the window in the outline. The label control must have a mnemonic. If the window contains text (for example, a push button), the text is grayed. If the window is a data field, it cannot receive the focus.
Returns: SalBoolean.
EnableWindow()
Enables keyboard and mouse input to a window.
Returns: SalBoolean.
EnableWindowAndLabel()
Enables keyboard and mouse input to a window and enables its associated label as well. A label is the label control that immediately precedes the window in the outline.
Returns: SalBoolean.
FindChild(sWindowName)
This function finds a child window of a given name in the specified window.
| Parameter | Type | Description |
|---|---|---|
| sWindowName | SalString |
Returns: SalWindowHandle.
FireWindowActions(nMsg, nMywParam, nMylParam)
Dispatches the specified message (Window Actions) directly to the control's WindowActions event handlers, without going through Windows message loop.
| Parameter | Type | Description |
|---|---|---|
| nMsg | SalNumber | |
| nMywParam | SalNumber | |
| nMylParam | SalNumber |
Returns: SalNumber.
FormUnitsToPixels(nFormUnits, bVertical)
Computes the number of pixels in the number of form units. Form units are a unit of measurement used by functions which move and position objects. Form units are computed using physical units (pixels) in conjunction with the window's font size.
| Parameter | Type | Description |
|---|---|---|
| nFormUnits | SalNumber | |
| bVertical | SalBoolean |
Returns: SalNumber.
GetClassName()
Return the name of a window's class as a string.
Returns: SalString.
GetControlType()
Returns an object's type.
Returns: SalNumber.
GetDataType()
Returns a data field's or table window column's data type.
Returns: SalNumber.
GetFirstChild(nTypeMask)
Returns the handle of the first child window of the specified type. You can use this function to get the handles of MDI child windows.
| Parameter | Type | Description |
|---|---|---|
| nTypeMask | SalNumber |
Returns: SalWindowHandle.
GetFont(sName, nSize, nEnhancement)
| Parameter | Type | Description |
|---|---|---|
| sName | SalString& | |
| nSize | SalNumber& | |
| nEnhancement | SalNumber& |
Returns: SalBoolean.
GetImageBytes(sImageBytes, nType)
| Parameter | Type | Description |
|---|---|---|
| sImageBytes | SalString& | |
| nType | SalNumber& |
Returns: SalNumber.
GetImageDescription(sDesc, nMaxLen)
| Parameter | Type | Description |
|---|---|---|
| sDesc | SalString& | |
| nMaxLen | SalNumber |
Returns: SalNumber.
GetImageDescription(nMaxLen)
Retrieves a description of a picture's contents.
| Parameter | Type | Description |
|---|---|---|
| nMaxLen | SalNumber |
Returns: SalString.
GetImageFromBlob(blob, imageType)
Converts the blob to an image.
| Parameter | Type | Description |
|---|---|---|
| blob | Byte[] | |
| imageType | Int32 |
Returns: Image.
GetImageString(nFormat, sPict)
| Parameter | Type | Description |
|---|---|---|
| nFormat | SalNumber | |
| sPict | SalString& |
Returns: SalNumber.
GetImageString(nFormat)
Return the contents of a picture into a string.
| Parameter | Type | Description |
|---|---|---|
| nFormat | SalNumber |
Returns: SalString.
GetLabel()
Retrieves the window handle of the label (label control) that is associated with the hWndTarget parameter. There must be a mnemonic in that label, and it must immediately precede hWndTarget in the outline, or this function will fail.
Returns: SalWindowHandle.
GetLabelText(sText, nMaxLength)
| Parameter | Type | Description |
|---|---|---|
| sText | SalString& | |
| nMaxLength | SalNumber |
Returns: SalNumber.
GetLabelText(nMaxLength)
Retrieves the text of the label associated to a control. Important: The label control does not require a mnemonic for the functions listed above to operate.
| Parameter | Type | Description |
|---|---|---|
| nMaxLength | SalNumber |
Returns: SalString.
GetLocation(nX, nY)
| Parameter | Type | Description |
|---|---|---|
| nX | SalNumber& | |
| nY | SalNumber& |
Returns: SalBoolean.
GetName(sText)
| Parameter | Type | Description |
|---|---|---|
| sText | SalString& |
Returns: SalBoolean.
GetName()
Gets the name of an object.
Returns: SalString.
GetNextChild(nTypeMask)
Returns the handle of the next child window that matches a specified type.
| Parameter | Type | Description |
|---|---|---|
| nTypeMask | SalNumber |
Returns: SalWindowHandle.
GetParent()
Returns the handle of an object's parent window.
Returns: SalWindowHandle.
GetProperty(sName, sValue)
| Parameter | Type | Description |
|---|---|---|
| sName | SalString | |
| sValue | SalString& |
Returns: SalBoolean.
GetProperty(sName)
Gets the value of a named property.
| Parameter | Type | Description |
|---|---|---|
| sName | SalString |
Returns: SalString.
GetSize(nWidth, nHeight)
| Parameter | Type | Description |
|---|---|---|
| nWidth | SalNumber& | |
| nHeight | SalNumber& |
Returns: SalBoolean.
GetText(sText, nMaxLen)
| Parameter | Type | Description |
|---|---|---|
| sText | SalString& | |
| nMaxLen | SalNumber |
Returns: SalNumber.
GetText(nMaxLen)
Retrieves the text of a window.
| Parameter | Type | Description |
|---|---|---|
| nMaxLen | SalNumber |
Returns: SalString.
GetWindowColor(nColorIndex)
Gets a window's color.
| Parameter | Type | Description |
|---|---|---|
| nColorIndex | SalNumber |
Returns: SalNumber.
GetWindowState()
Returns a window's current state.
Returns: SalNumber.
HideWindow()
Hides a window.
Returns: SalBoolean.
HideWindowAndLabel()
Hides a window and its associated label.
Returns: SalBoolean.
InvalidateWindow()
Causes a window to be repainted.
Returns: SalBoolean.
IsDerivedFromClass(tClass)
Determines whether a window is an instance of the specified class.
| Parameter | Type | Description |
|---|---|---|
| tClass | Type |
Returns: SalBoolean.
IsEnabled()
Determines whether a window is enabled for mouse and keyboard input.
Returns: SalBoolean.
IsModified()
Returns the setting of the Field Edit Flag for a data field, multiline field, combo box, table window's context row cell, or picture.
Returns: SalBoolean.
IsVisible()
Determines whether a window is currently visible.
Returns: SalBoolean.
KillTimer(nIDEvent)
Destroys an object's system timer.
| Parameter | Type | Description |
|---|---|---|
| nIDEvent | SalNumber |
Returns: SalBoolean.
MoveWindow(nXOffset, nYOffset)
Moves a window a given number of form units on the X and Y axes relative to its current position.
| Parameter | Type | Description |
|---|---|---|
| nXOffset | SalNumber | |
| nYOffset | SalNumber |
Returns: SalBoolean.
PixelsToFormUnits(nNumPixels, bVertical)
Computes the number of form units based on the number of pixels. Form units are a unit of measurement used by functions that move and position objects. Form units are computed using physical units (pixels) in conjunction with a window's font sizes.
| Parameter | Type | Description |
|---|---|---|
| nNumPixels | SalNumber | |
| bVertical | SalBoolean |
Returns: SalNumber.
PostMessage(nMsg, nMywParam, nMylParam)
Posts the specified message to a window by adding nMsg to hWndReceiver's message queue.
| Parameter | Type | Description |
|---|---|---|
| nMsg | SalNumber | |
| nMywParam | SalNumber | |
| nMylParam | SalNumber |
Returns: SalBoolean.
SendMessage(nMsg, nMywParam, nMylParam)
Sends the specified message to a window. SalSendMsg does not return until the processing for the message is complete.
| Parameter | Type | Description |
|---|---|---|
| nMsg | SalNumber | |
| nMywParam | SalNumber | |
| nMylParam | SalNumber |
Returns: SalNumber.
SendMessageToChildren(nMsg, nMywParam, nMylParam)
Sends a message to all child items of a form window, dialog box, table window, or MDI window.
| Parameter | Type | Description |
|---|---|---|
| nMsg | SalNumber | |
| nMywParam | SalNumber | |
| nMylParam | SalNumber |
Returns: SalBoolean.
SetContextMenu(sMenuName, nFlags)
Defines a named popup menu that displays automatically when a window receives SAM_ContextMenu.
| Parameter | Type | Description |
|---|---|---|
| sMenuName | SalString | |
| nFlags | SalNumber |
Returns: SalBoolean.
SetContextMenu(menuType, nFlags)
Defines a named popup menu that displays automatically when a window receives SAM_ContextMenu.
| Parameter | Type | Description |
|---|---|---|
| menuType | Type | |
| nFlags | SalNumber |
Returns: SalBoolean.
SetCursor(nResourceId, nType)
Sets a window's cursor.
| Parameter | Type | Description |
|---|---|---|
| nResourceId | Int32 | |
| nType | SalNumber |
Returns: SalBoolean.
SetCursor(sBlob, nType)
Sets a window's cursor from a string variable.
| Parameter | Type | Description |
|---|---|---|
| sBlob | SalString | |
| nType | SalNumber |
Returns: SalBoolean.
SetCursorFile(sFile, nType)
Sets an application-defined cursor for the specified window. Use this function to set the cursor from an image stored in a file.
| Parameter | Type | Description |
|---|---|---|
| sFile | SalString | |
| nType | SalNumber |
Returns: SalBoolean.
SetFocus()
Sets the focus to a specified window.
Returns: SalWindowHandle.
SetFont(sName, nSize, nEnhancement)
Sets a window's font, font size, and font enhancements.
| Parameter | Type | Description |
|---|---|---|
| sName | SalString | |
| nSize | SalNumber | |
| nEnhancement | SalNumber |
Returns: SalBoolean.
SetImageBytes(sImageBytes, nType)
Inserts the contents of a picture to an image without the image header.
| Parameter | Type | Description |
|---|---|---|
| sImageBytes | SalString | |
| nType | SalNumber |
Returns: SalBoolean.
SetImageFile(sFileName)
Inserts a file's contents into a picture.
| Parameter | Type | Description |
|---|---|---|
| sFileName | SalString |
Returns: SalBoolean.
SetImageFit(nFit, nScaleWidth, nScaleHeight)
Deprecated: SetImageFit(nFit, nScaleWidth, nScaleHeight) is deprecated, use SetImageFit(nFit)
Sets the fit for a picture.
| Parameter | Type | Description |
|---|---|---|
| nFit | SalNumber | One of PIC_FitBestFit, PIC_FitScale, PIC_FitSizeToFit. |
| nScaleWidth | SalNumber | Not supported. |
| nScaleHeight | SalNumber | Not supported. |
Returns: SalBoolean.
SetImageFit(nFit)
Sets the fit for a picture.
| Parameter | Type | Description |
|---|---|---|
| nFit | SalNumber | One of PIC_FitBestFit, PIC_FitScale, PIC_FitSizeToFit. |
Returns: SalBoolean.
SetImageHandle(nType, nHandle)
Sets the picture image of a picture window with the handle of a bitmap (HBITMAP) or icon (HICON). Usually, HBITMAPs and HICONs are loaded from DLLs.
| Parameter | Type | Description |
|---|---|---|
| nType | SalNumber | |
| nHandle | SalNumber |
Returns: SalBoolean.
SetImageResource(tResource, nFormat)
Inserts a resource into a picture.
| Parameter | Type | Description |
|---|---|---|
| tResource | SalResource | |
| nFormat | SalNumber |
Returns: SalBoolean.
SetImageString(nFormat, sPicture)
Inserts the contents of a string into a picture.
| Parameter | Type | Description |
|---|---|---|
| nFormat | SalNumber | |
| sPicture | SalString |
Returns: SalBoolean.
SetLabelText(sText)
Sets the text of the associaetd label control.
| Parameter | Type | Description |
|---|---|---|
| sText | SalString |
Returns: SalBoolean.
SetLocation(nX, nY)
Moves a window to a new position (x, y) on the X and Y axes.
| Parameter | Type | Description |
|---|---|---|
| nX | SalNumber | |
| nY | SalNumber |
Returns: SalBoolean.
SetModified(bSet)
Sets or clears the field edit flag for an editable data field, combo box, multiline text field, table window column, or picture.
| Parameter | Type | Description |
|---|---|---|
| bSet | SalBoolean |
Returns: SalBoolean.
SetProperty(sName, sValue, nLength)
Sets the value of a named property.
| Parameter | Type | Description |
|---|---|---|
| sName | SalString | |
| sValue | SalString | |
| nLength | SalNumber |
Returns: SalBoolean.
SetSize(nWidth, nHeight)
Resizes a window.
| Parameter | Type | Description |
|---|---|---|
| nWidth | SalNumber | |
| nHeight | SalNumber |
Returns: SalBoolean.
SetText(sText)
Sets the text of a window.
| Parameter | Type | Description |
|---|---|---|
| sText | SalString |
Returns: SalBoolean.
SetTimer(nIDEvent, nElapseMilliSec)
Creates a system timer for a given object. When a timer event occurs, sends SAM_Timer messages to the object in specified intervals. Timers are a limited global resource. Your application must check the value returned by SalTimerSet to verify that the timer was created.
| Parameter | Type | Description |
|---|---|---|
| nIDEvent | SalNumber | |
| nElapseMilliSec | SalNumber |
Returns: SalBoolean.
SetWindowColor(nColorIndex, nColor)
Sets a window's color.
| Parameter | Type | Description |
|---|---|---|
| nColorIndex | SalNumber | |
| nColor | SalNumber |
Returns: SalBoolean.
ShowWindow()
Makes a window visible.
Returns: SalBoolean.
ShowWindowAndLabel()
Makes a window and its associated label visible. A label is the label control that immediately precedes the window in the outline.
Returns: SalBoolean.
TrackPopupMenu(sMenuName, nFlags, nX, nY, callback)
Creates pop-up menus at runtime.
| Parameter | Type | Description |
|---|---|---|
| sMenuName | SalString | |
| nFlags | SalNumber | |
| nX | SalNumber | |
| nY | SalNumber | |
| callback | Action<ContextMenu> |
Returns: SalBoolean.
TrackPopupMenu(menuType, nFlags, nX, nY, callback)
Creates pop-up menus at runtime.
| Parameter | Type | Description |
|---|---|---|
| menuType | Type | |
| nFlags | SalNumber | |
| nX | SalNumber | |
| nY | SalNumber | |
| callback | Action<ContextMenu> |
Returns: SalBoolean.
UpdateWindow()
Forces the update of a window.
Returns: SalBoolean.
Events
WindowActions
WindowActionsEventHandler
Implements
| Name | Description |
|---|---|
| ISalControl | All SAL controls implement this interface. |
| ISalPictureControl | SAL Controls that display a picture implement this interface. |
| ISalWindow | All Sal windows (Child windows, Forms, Dialogs and MDIs) implement this interface. |